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6df028f783
The transformation happening here is that we want to turn a "mul(ext(X), ext(X))" into a "vmull(X, X)", stripping off the extension. We have to make sure that X still has a valid vector type - possibly recreate an extension to a smaller type. In case of a extload of a memory type smaller than 64 bit we used create a ext(load()). The problem with doing this - instead of recreating an extload - is that an illegal type is exposed. This patch fixes this by creating extloads instead of ext(load()) sequences. Fixes PR15970. radar://13871383 llvm-svn: 181842 |
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